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Rectifier - Damper Diode ·Rectifier

6CD3

Duodecar half-wave vacuum rectifier designed as a damper diode in color-television horizontal-deflection circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
12FX
Socket code
B9A
Base pins
12
Nominal heater
6.3 V / 1.8 A

Description

Duodecar half-wave vacuum rectifier used as a damper diode in the horizontal-deflection circuit of color television receivers.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12FX
Socket code
B9A
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
1.8 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12FX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Max plate dissipation
12 W
Rectifier peak inverse voltage
6000 V
Rectifier nominal output current
350 mA
Rectifier peak forward current
1.5 A
Rectifier forward voltage drop
20 V
Rectifier max heater-cathode voltage
6000 V
Rectifier warm-up time
11 s

Damper diode. Rectifier-style promoted fields carry published peak inverse voltage and DC/peak current ratings.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater voltage

    6.3 V

  • Heater current

    1.8 A

  • Plate voltage

    6000 V

    Typical operating conditions

  • Plate current

    1500 mA

    Typical operating conditions

Data set 02

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Cathode-to-plate-and-heater capacitance

    16 pF

  • Plate-to-cathode-and-heater capacitance

    14 pF

  • Heater-to-cathode capacitance

    4 pF

Other

  • Heater-cathode voltage heater negative DC

    1000 V

  • Heater-cathode voltage heater negative total DC and peak

    6000 V

  • Heater-cathode voltage heater positive DC

    100 V

  • Heater-cathode voltage heater positive total DC and peak

    300 V

  • Plate dissipation

    12 W

    DamperService

Data set 03

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater Voltage (ac/dc) 6.3

    34.6 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater Current 2.6

    450 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater Warm-up Time (Average)

    11 seconds

    Published in approved 34CE3 target datasheet entry; Section1

  • Plate to Cathode and Heater

    13 pF

    Published in approved 34CE3 target datasheet entry; Section1

  • Cathode to Plate and Heater

    18 pF

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater to Cathode

    5.5 pF

    Published in approved 34CE3 target datasheet entry; Section1

  • Peak Inverse Plate Voltage*

    5000 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Peak Plate Current

    1500 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Average Plate Current

    350 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Plate Dissipation

    11 W

    Published in approved 34CE3 target datasheet entry; Section1

  • Bulb Temperature (At hottest point)

    220 °C

    Published in approved 34CE3 target datasheet entry; Section1

  • Peak value +300

    5600 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Average value +100

    -900 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Tube Voltage Drop for plate current of

    680 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Tube Voltage Drop for plate current of 680 mA

    20 V

    Published in approved 34CE3 target datasheet entry; Section1

  • # Pulse duration must not exceed 15% of a horizontal scanning cycle (

    10 microseconds

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater Voltage (ac/dc) 6.3 19

    25 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater Current 1.8 0.6

    450 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Heater Warm-up Time — 11

    11 seconds

    Published in approved 34CE3 target datasheet entry; Section1

  • Peak Plate Current

    2100 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Average Plate Current +300

    350 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Plate Dissipation

    6.5 W

    Published in approved 34CE3 target datasheet entry; Section1

  • Peak value

    -5000 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Average value +100

    900 V

    Published in approved 34CE3 target datasheet entry; Section1

  • Tube VoitAge Drop for plate current of

    700 mA

    Published in approved 34CE3 target datasheet entry; Section1

  • Tube VoitAge Drop for plate current of 700 mA

    25 V

    Published in approved 34CE3 target datasheet entry; Section1